AnswersOK-Algebra II AComposition of Functions

Symmetry Answers

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1
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Which graph shows rotational symmetry?

A
On a coordinate plane, a sine curve goes through one cycle and is represented by f (x). The curve has a minimum of (2, negative 2), a maximum of (negative 2, 2), and goes through (0, 0).
Option A
B
On a coordinate plane, the function g(x) has two connected curves. The first curve goes through point (negative 3, negative 2) to (0, 0). The second curve goes from (0, 0) through (2, 3).
Option B
C
On a coordinate plane, the function h (x) is a v shape that opens down. The function has a vertex at (0,0) and goes through (negative 4, negative 4) and (4, negative 4).
Option C
D
On a coordinate plane, a parabola opens up. It goes through (negative 2, 4), has a vertex at (0, 0), and goes through (2, 4).
Option D
2
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The graph of the even function f(x) has five x-intercepts. If (6, 0) is one of the intercepts, which set of points can be the other x-intercepts of the graph of f(x)?

A
(–6, 0), (–2, 0), and (0, 0)
B
(–6, 0), (–2, 0), and (4, 0)
C
(–4, 0), (0, 0), and (2, 0)
D
(–4, 0), (–2, 0), and (0, 0)
3

Which of the following is an even function?

A
f(x) = (x – 1)2
B
f(x) = 8x
C
f(x) = x2 – x
D
f(x) = 7
4

If f(x) is an odd function and the graph of f(x) includes points in Quadrant IV, which statement about the graph of f(x) must be true?

A
It includes points in Quadrant I.
B
It includes points in Quadrant II.
C
It does not include points in Quadrant I.
D
It does not include points in Quadrant II.
5

The graph of f(x) consists of 14 points. Six of the points lie in Quadrant I of the coordinate plane. If f(x) is an odd function, what is the greatest number of points that can lie in Quadrant II?

A
one
B
two
C
six
D
eight
6

Which statement best describes how to determine whether f(x) = 9 – 4x2 is an odd function?

A
Determine whether 9 – 4(–x)2 is equivalent to 9 – 4x2.
B
Determine whether 9 – 4(–x2) is equivalent to 9 + 4x2.
C
Determine whether 9 – 4(–x)2 is equivalent to –(9 – 4x2).
D
Determine whether 9 – 4(–x2) is equivalent to –(9 + 4x2).
7

Which statement best describes how to determine whether f(x) = x4 – x3 is an even function?

A
Determine whether (–x)4 – (–x)3 is equivalent to x4 – x3.
B
Determine whether (–x4) – (–x3) is equivalent to x4 + x3.
C
Determine whether (–x)4 – (–x)3 is equivalent to –(x4 – x3).
D
Determine whether (–x4) – (–x3) is equivalent to –(x4 + x3).
8

Which statement best describes how to determine whether f(x) = x3 + 5x + 1 is an even function?

A
Determine whether –(x3 + 5x + 1) is equivalent to x3 + 5x + 1.
B
Determine whether (–x)3 + 5(–x) + 1 is equivalent to x3 + 5x + 1.
C
Determine whether –x3 + 5x + 1 is equivalent to –(x3 + 5x + 1).
D
Determine whether (–x)3 + 5(–x) + 1 is equivalent to –(x3 + 5x + 1).
9

Which of the following is an even function?

A
f(x) = |x|
B
f(x) = x3 – 1
C
f(x) = –3x
D
f (x) = RootIndex 3 StartRoot x EndRoot
Option D
10

Which of the following is an odd function?

A
f(x) = 3x2 + x
B
f(x) = 4x3 + 7
C
f(x) = 5x2 + 9
D
f(x) = 6x3 + 2x

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